What is Freeze Drying

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Freeze Drying is a state of the art method for floral preservation. It is a combination of science and art. Freeze drying has been rated as the best method of floral preservation by Good Housekeeping and also by NBC Dateline.

How does it work?

  • Flowers are hydrated with special solution, this aides for quality processing and revives stressed flowers.
  • Flowers are then pretreated according to type, and color. All pretreatments are biodegradable.
  • Pre-treatments help to shatter proof and sets natural color and durability and opens the cellular structure.
  • With the cellular structure open you are able to remove water more efficiently .
  • Flowers are placed in a storage freezer to solidly freeze them before loading into machine.
  • Flowers are loaded into machine according to type and color.
  • Temperature in product chamber is -25 degrees. A vacuum is applied.
  • The vacuum and extreme low temperature allows the ice crystals in the flowers to sublimate to water vapor.
  • Vapor is then drawn down to the ice bank which is a -55 degrees and is turned back to ice.
  • The temperature of the product chamber is slowly raised daily until it reaches 70 degrees.
  • Some flowers need a longer drying time. Drying times can vary from 14 to 21 days.
  • Once finished the flowers are then post treated and tinted as needed.

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